undeciphered

adj.not deciphered

"Linear A is still undeciphered"

The Undeciphered Signs of Linear B
Probabilistic Analysis of an Ancient Undeciphered Script
Probabilistic Analysis of an Ancient Undeciphered Script
Decipherment of Two Undeciphered Cuifen Problems in Yuelushuyuan's Book "Shu"
Lost Languages: The Enigma of the World's Undeciphered Scripts (revised ed.)
Long noncoding RNAs: Undeciphered cellular codes encrypting keys of colorectal cancer pathogenesis
Epigenetics: A possible answer to the undeciphered etiopathogenesis and behavior of oral lesions:
Network analysis of a corpus of undeciphered Indus civilization inscriptions indicates syntactic organization
Tablets and Territories? Reconstructing Late Minoan IB Political Geography through Undeciphered Documents
Network analysis reveals structure indicative of syntax in the corpus of undeciphered Indus civilization inscriptions